GF27.10-P-3025SX Power Flow In Reverse Gear, Program Selection C, Function

GF27.10-P-3025SX Power flow in reverse gear, program selection "C", function
- TRANSMISSION 722.9
- up to model year 08







The Ravigneaux gear set consists of the following components:
^ Short planet gears
^ Long planet gears
^ Small internal-geared wheel
^ Dual planet carrier
^ Sun gear (7)
^ Large internal-geared wheel

The front single planetary gear set consists of the following components:
^ Planetary gears (52)
^ Internal-geared wheel (12)
^ Planet carrier (13)
^ Sun gear (14)

The rear single planetary gear set consists of the following components:
^ Planetary gears (51)
^ Internal-geared wheel (9)
^ Planet carrier (10)
^ Sun gear (11)

Power flow in reverse gear, program selection" C", function
The following multi-disk brakes and multi-disk clutches are engaged:
^ Multi-disk brake BR
^ Multiple-disk brake B3
^ Multi-disk clutch K3

Ravigneaux gear set
The small ring gear is driven via the transmission input shaft. The long planetary gears drive the short planetary gears which roll in the large stalled ring gear. The resulting increased torque and resulting decreased rotational speed are transmitted to the dual planet carrier.

Single rear planetary gear system
The ring gear (9) rotates at the same rotational speed due to the mechanical connection to the dual planet carrier. The planet gears (51) roll on the sun gear (11). The stalled planet carrier (10) results in the sun gear (11) reversing its direction of rotation (10).

Single front planetary gear system
Sun gear (14) is connected to sun gear (11) via the engaged multi-disk clutch K3 As a result the sun gear (14) rotates at the same rotational speed and direction of rotation as sun gear (11) and drives the planetary gears (52). The increased torque and reduced rotational speed as a result are transmitted via the planet carrier (13) to the transmission output shaft. The transmission output shaft thus rotates at reduced transmission input speed opposite to the direction of rotation of the engine.